In short
- CVE-2023-29513 is a MEDIUM (CVSS 4.3) vulnerability affecting org.xwiki.platform:xwiki-platform-web-templates, xwiki (xwiki).
- Chance of exploitation in the next 30 days (EPSS): 0.67%, higher than 52.1% of all vulnerabilities.
- Fix: update to 14.10.1 or later.
Description
Impact
If a guest has view rights on any document, it's possible to create a new user using the distribution/firstadminuser.wiki in the wrong context.
To reproduce:
- On a wiki with view rights for guests but user registration disabled, open as guest <server>/xwiki/bin/view/Main?sheet=CKEditor.HTMLConverter&language=en&sourceSyntax=xwiki%2F2.1&stripHTMLEnvelope=true&fromHTML=false&toHTML=true&text=%7B%7Btemplate+name%3D%22distribution%2Ffirstadminuser.wiki%22+%2F%7D%7D where <server> is the URL of your XWiki installation.
- Enter username and password of your choice.
- Click "Register and login"
Patches
The vulnerability has been patched in XWiki 15.0-rc-1 and 14.10.1.
Workarounds
There is no known workaround other than upgrading.
References
https://jira.xwiki.org/browse/XWIKI-19852
https://jira.xwiki.org/browse/XWIKI-20400
For more information
If you have any questions or comments about this advisory:
NVD description
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. If guest has view right on any document. It's possible to create a new user using the `distribution/firstadminuser.wiki` in the wrong context. This vulnerability has been patched in XWiki 15.0-rc-1 and 14.10.1. There is no known workaround other than upgrading.
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